On Tue, 12 Oct 2004 00:01:10 -0400, Lee Revell <rlrevell@xxxxxxxxxxx> wrote: > > > On Mon, 2004-10-11 at 22:37, thewade wrote: > > Is there a way to tell from inside linux, for example a message sent > > to the kernel, what method acpi uses to access the hardware? > > > > Not sure. I asked this question on LKML and have not received an answer > yet. > > Lee > > Unless I misunderstood what I read, SMM mode (which I vaguely remember from when I worked at Phoenix in about 1996) was replaced by ACPI. (End of the page on the second link.) The question seems to be whether anyone is still designing machines that even use SMM. I would suggest, without any real information, that Intel, AMD and Via are probably not producing chipsets that are broken WRT power management *or* performance. Power is too easy to measure and Intel has a lot of competition in the performance areas. Wouldn't the more likely group of laptops that would be broken in this manner be older laptops? Or laptos with newer chipsets that could have bugs? (Like mychipset which *is* newer...) I would be pretty suprized if an Intel Centrino box was broken in this manner, but any machine could be I suppose...